add new style and global search

src/App.svelte

@@ -1,6 +1,7 @@
 <script lang="ts">
   import { onDestroy, onMount } from "svelte";
-  import { AlertCircle, Check, GitBranch, GitMerge, LoaderCircle } from "@lucide/svelte";
+  import { open as openDialog } from "@tauri-apps/plugin-dialog";
+  import { AlertCircle, Check, FolderOpen, GitBranch, GitMerge, LoaderCircle } from "@lucide/svelte";
 
   import TitleBar from "./lib/TitleBar.svelte";
   import BranchPanel from "./lib/components/BranchPanel.svelte";
@@ -10,6 +11,7 @@
   import CredentialDialog from "./lib/components/CredentialDialog.svelte";
   import ExplorerPanel from "./lib/components/ExplorerPanel.svelte";
   import FileHistoryPanel from "./lib/components/FileHistoryPanel.svelte";
+  import GlobalSearchDialog from "./lib/components/GlobalSearchDialog.svelte";
   import HistoryPanel from "./lib/components/HistoryPanel.svelte";
   import ResolveDialog from "./lib/components/ResolveDialog.svelte";
   import StatusPanel from "./lib/components/StatusPanel.svelte";
@@ -18,6 +20,7 @@
     checkoutBranch,
     commit,
     compareCommits,
+    cancelCodeSearch,
     diffFileAgainstWorkingTree,
     getStatus,
     listBranches,
@@ -34,6 +37,7 @@
     restoreFileFromCommit,
     restoreFiles,
     restoreToCommit,
+    searchCodeIntroductions,
     stageFiles,
     unstageFiles,
   } from "./lib/git";
@@ -49,6 +53,7 @@
     GitDiffFile,
     GitFileStatus,
     GitRepositoryFile,
+    GitSearchHit,
     GitStatus,
     PreparedResolution,
   } from "./lib/types";
@@ -74,6 +79,11 @@
   let comparison: GitCommitComparison | null = null;
   let compareDialogOpen = false;
   let selectedDiffPath = "";
+  let globalSearchOpen = false;
+  let globalSearchResults: GitSearchHit[] = [];
+  let globalSearchBusy = false;
+  let globalSearchError = "";
+  let globalSearchId = "";
   let resolveDialogOpen = false;
   let conflictTarget = "";
   let conflict: ConflictFile | null = null;
@@ -122,7 +132,7 @@
   }
 
   async function autoRefreshTick() {
-    if (!autoRefreshEnabled || !activeRepoPath || isBusy || autoRefreshInFlight || resolveDialogOpen || compareDialogOpen) return;
+    if (!autoRefreshEnabled || !activeRepoPath || isBusy || autoRefreshInFlight || resolveDialogOpen || compareDialogOpen || globalSearchOpen) return;
     autoRefreshInFlight = true;
     try {
       const nextStatus = await getStatus(activeRepoPath);
@@ -220,9 +230,10 @@
 
   // ── Repository operations ──────────────────────────────────────────────────
 
-  async function openRepo() {
-    const path = repoPath.trim();
+  async function openRepo(pathOverride?: string) {
+    const path = (pathOverride ?? repoPath).trim();
     if (!path) { errorMessage = "Enter a repository path."; return; }
+    repoPath = path;
 
     await runOperation("Opening repository", async () => {
       const nextStatus = await openRepository(path);
@@ -232,6 +243,8 @@
       expandedExplorerPaths = new Set(); expandedCommitHashes = new Set();
       fileHistory = []; compareFrom = ""; compareTo = "";
       comparison = null; compareDialogOpen = false; selectedDiffPath = "";
+      if (globalSearchBusy) void cancelGlobalSearch();
+      globalSearchResults = []; globalSearchOpen = false; globalSearchError = "";
       resolveDialogOpen = false; conflictTarget = ""; conflict = null;
       preparedResolutions = {};
       await refreshBranchList(activeRepoPath);
@@ -240,6 +253,23 @@
     });
   }
 
+  async function chooseRepositoryFolder() {
+    if (isBusy) return;
+    try {
+      const selected = await openDialog({
+        title: "Repository folder auswaehlen",
+        directory: true,
+        multiple: false,
+        defaultPath: repoPath.trim() || activeRepoPath || undefined,
+      });
+      if (typeof selected !== "string") return;
+      repoPath = selected;
+      await openRepo(selected);
+    } catch (error) {
+      errorMessage = errorToMessage(error);
+    }
+  }
+
   async function refreshRepo() {
     if (!activeRepoPath) { await openRepo(); return; }
     await runOperation("Refreshing", async () => {
@@ -474,6 +504,48 @@
     selectedDiffPath = file.path;
   }
 
+  async function runGlobalSearch(query: string, caseSensitive: boolean, limit: number) {
+    if (!activeRepoPath || globalSearchBusy) return;
+    const searchId = `search-${Date.now()}-${Math.random().toString(36).slice(2)}`;
+    globalSearchId = searchId;
+    globalSearchBusy = true;
+    globalSearchError = "";
+    globalSearchResults = [];
+
+    try {
+      const results = await searchCodeIntroductions(activeRepoPath, query, caseSensitive, limit, searchId);
+      if (globalSearchId === searchId) {
+        globalSearchResults = results;
+      }
+    } catch (error) {
+      if (globalSearchId === searchId) {
+        const message = errorToMessage(error);
+        globalSearchError = message.includes("abgebrochen") ? "Suche wurde abgebrochen." : message;
+      }
+    } finally {
+      if (globalSearchId === searchId) {
+        globalSearchBusy = false;
+        globalSearchId = "";
+      }
+    }
+  }
+
+  async function cancelGlobalSearch() {
+    if (!globalSearchId) return;
+    const searchId = globalSearchId;
+    globalSearchError = "Abbruch wird angefordert...";
+    try {
+      await cancelCodeSearch(searchId);
+    } catch (error) {
+      globalSearchError = errorToMessage(error);
+    }
+  }
+
+  function closeGlobalSearchDialog() {
+    if (globalSearchBusy) void cancelGlobalSearch();
+    globalSearchOpen = false;
+  }
+
   // ── Conflict resolution ────────────────────────────────────────────────────
 
   async function loadConflict(file: string) {
@@ -543,6 +615,7 @@
 
   function handleWindowKeydown(event: KeyboardEvent) {
     if (event.key === "Escape" && compareDialogOpen) compareDialogOpen = false;
+    else if (event.key === "Escape" && globalSearchOpen) closeGlobalSearchDialog();
   }
 </script>
 
@@ -566,6 +639,7 @@
     onPull={pullRepo}
     onPush={pushRepo}
     onRefresh={refreshRepo}
+    onSearch={() => { globalSearchOpen = true; }}
     onToggleAutoRefresh={toggleAutoRefresh}
   />
 
@@ -583,6 +657,17 @@
           placeholder="/path/to/repository"
           disabled={isBusy}
         />
+        <button
+          class="btn-secondary repo-browse"
+          type="button"
+          onclick={chooseRepositoryFolder}
+          disabled={isBusy}
+          title="Repository-Ordner auswaehlen"
+          aria-label="Repository-Ordner auswaehlen"
+        >
+          <FolderOpen size={16} aria-hidden="true" />
+          Browse
+        </button>
         <button class="btn-primary" type="submit" disabled={isBusy || repoPath.trim().length === 0}>
           {#if operation === "Opening repository"}
             <LoaderCircle class="spin" size={16} aria-hidden="true" />
@@ -743,6 +828,19 @@
   />
 {/if}
 
+{#if globalSearchOpen}
+  <GlobalSearchDialog
+    {hasRepository}
+    {isBusy}
+    isSearching={globalSearchBusy}
+    error={globalSearchError}
+    results={globalSearchResults}
+    onClose={closeGlobalSearchDialog}
+    onSearch={runGlobalSearch}
+    onCancel={cancelGlobalSearch}
+  />
+{/if}
+
 <!-- Credential dialog for push/pull -->
 {#if credDialogOpen && credDialogAction}
   <CredentialDialog